NEW YORK (Reuters Life!) - A T-shirt a day has kept unemployment at bay for an American man who is making about $85,000 a year by selling advertising space on his torso. Jason Sadler, 26, a former marketing professional from Florida, founded his own company, www.iwearyourshirt.com, in 2008 with the idea to wear a T-shirt supplied by any company and then use social media tools to promote the firm.

For his human billboard service, Sadler charges the "face value" of the day so January 1 costs $1, while December 31 costs $365. Sadler said this may not sound like a lot but it adds up to $66,795 a year if he sells out every day, which he did this year. He also sells monthly sponsorships for $1,500, adding another $18,000 to his income.

"I walk around, take photos, wear the shirt all day ... I blog about those photos, I put 'em up on Twitter, I change my Facebook profile ... and then I do a Youtube video," he told Reuters Television.